PERIODIC MAINTENANCE WHEN THE VESSEL IS OUT OF THE WATER, PERFORM THE FOLLOWING: Draining Water Drain the engine cooling water, together with the water in the Sail-Drive case. If this water is not drained, freezing may cause the engine block and / or the Sail-Drive case to crack. Removing Deposits From The Lower Gear Case Remove seaweed, seashells and other marine growth from the lower gear case. Completely remove deposits around the cooling water intake (Figure 1, (2)) since the engine may overheat if the cooling water intake amount is insufficient.
(1) Repairing Damaged Coating The lower gear case coating may be damaged when hit by objects in the water, or when having deposits removed from it. NEVER use paint containing copper or tin. This will damage the drive and void the warranty. Use a high quality primer and topcoat paint specifically designed for aluminum outboards or stern-drives. Follow the manufacturer's directions for surface preparation and application. Contact your authorized Yanmar Marine dealer or distributor for assistance. 0005464 (2) Figure 1 1 Lower Gear Case 2 Seawater Inlet Inspecting the Anode See Inspecting and Replacing the Anode on page 48 .
Inspecting The Folding Propeller Confirm that the blade of the folding propeller opens smoothly. Inspect for wear on the blade-fixing pins, replacing them when wear is excessive. Apply seawater- proof grease to the pins in the blade gear and propeller shaft. 38 SD Operation Manual © 2009 Yanmar Marine International